Need ASAP 18 points

Solve 2 sin 0 = sin 20 for 0 degree 0 more than or equal 0 more than or equal 180

Tatiana [17]

Step-by-step explanation:

Im use x instead of theta.

$2 \sin(x) = \sin(2x)$

$2 \sin(x) = 2 \sin(x) \cos(x)$

$1 = \cos(x)$

$x = 0$

4 0

2 years ago

Find the volume of a pyramid with a square base, where the side length of the base is 10.9 m and the height of the pyramid is 4.

natita [175]

Answer:

$V=186.1\ m^3$

Step-by-step explanation:

<u>Volume of a Pyramid</u>

The volume of a pyramid with base area Ab and height H is given by:

$\displaystyle V=\frac{A_b*H}{3}$

If the base is a square of side length L, then its area is:

$A_b=L^2$

Thus, substituting the above equation in the first:

$\displaystyle V=\frac{L^2*H}{3}$

The side length is L=10.9 m and the height is 4.7 m, thus the volume is:

$\displaystyle V=\frac{10.9^2*4.7}{3}$

$\displaystyle V=\frac{558.407}{3}$

$\boxed{V=186.1\ m^3}$

3 0

4 years ago

Point A is located at (-2, -6) and is translated 4 units up. What are the coordinates of point A'?

defon

Answer:

(-2, -2)

Step-by-step explanation:

Red point represents (-2,-6) while blue point represents (-2,-2). count the numbers upward and it'll be 4 units. Best thing to do in this problem is to plot the given points and go from there.

4 0

3 years ago

Read 2 more answers

Choose whether it's always, sometimes, never

Keith_Richards [23]

Answer: An integer added to an integer is an integer, this statement is always true. A polynomial subtracted from a polynomial is a polynomial, this statement is always true. A polynomial divided by a polynomial is a polynomial, this statement is sometimes true. A polynomial multiplied by a polynomial is a polynomial, this statement is always true.

Explanation:

1)

The closure property of integer states that the addition, subtraction and multiplication is integers is always an integer.

If $a\in Z\text{ and }b\in Z$ , then a+b\in Z.

Therefore, an integer added to an integer is an integer, this statement is always true.

2)

A polynomial is in the form of,

$p(x)=a_nx^n+a_{n-1}x^{x-1}+...+a_1x+a_0$

Where $a_n,a_{n-1},...,a_1,a_0$ are constant coefficient.

When we subtract the two polynomial then the resultant is also a polynomial form.

Therefore, a polynomial subtracted from a polynomial is a polynomial, this statement is always true.

3)

If a polynomial divided by a polynomial then it may or may not be a polynomial.

If the degree of numerator polynomial is higher than the degree of denominator polynomial then it may be a polynomial.

For example:

$f(x)=x^2-2x+5x-10 \text{ and } g(x)=x-2$

Then $\frac{f(x)}{g(x)}=x^2+5$ , which a polynomial.

If the degree of numerator polynomial is less than the degree of denominator polynomial then it is a rational function.

For example:

$f(x)=x^2-2x+5x-10 \text{ and } g(x)=x-2$

Then $\frac{g(x)}{f(x)}=\frac{1}{x^2+5}$ , which a not a polynomial.

Therefore, a polynomial divided by a polynomial is a polynomial, this statement is sometimes true.

4)

As we know a polynomial is in the form of,

$p(x)=a_nx^n+a_{n-1}x^{x-1}+...+a_1x+a_0$

Where $a_n,a_{n-1},...,a_1,a_0$ are constant coefficient.

When we multiply the two polynomial, the degree of the resultand function is addition of degree of both polyminals and the resultant is also a polynomial form.

Therefore, a polynomial subtracted from a polynomial is a polynomial, this statement is always true.

3 0

3 years ago

Read 2 more answers

Answer ASAP!! Please! Will give brainliest!

ale4655 [162]

This is what you’re looking for !

7 0

3 years ago